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Thousand Islands Half Marathon, 10K & 5K

📅 May 14, 2027 (estimated date)📍 Wellesley Island · United States

⚠️ 2027 edition: provisional information

The date is estimated from the 2026 edition (May 15, 2026), on the same day of the week. Courses, start times, fees and description are carried over from the previous edition: check them on the official website. This page will be updated as soon as the organizer publishes them.

Available distances

13.1 mi6.2 mi3.1 mi

About

The Thousand Islands Half Marathon, 10K & 5K takes place on Wellesley Island, New York, in mid-May, as a multi-day event centered on Alexandria Bay. The 5K starts on a Friday evening at 5:00 p.m., and the half marathon (13.1 miles) and 10K follow the next morning at 8:00 and 8:30. Runners can combine races for an extra challenge.

The course offers panoramic views of the Thousand Islands and the Thousand Islands Bridge. It is part of the Get Fit half marathon series and benefits the local community and the ACS Booster Club, with festivities and awards afterward. The St. Lawrence River area is breezy, so even in mid-May a windproof layer for the start is a smart item to pack.

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Races nearby

Other upcoming races around Wellesley Island.